Custom sizes and quantity discounts

Topic summary

Seeking an app solution for a sticker printing store that supports custom sizes and tiered quantities with automatic pricing updates. Current attempt with Easify partly works but fails to correctly multiply prices.

  • Use case: customers choose from preset sizes or enter a custom size; then select quantity (50, 100, 200, 300, 1000, 2500) or enter a custom quantity.
  • Pricing expectation: selecting “medium” sets unit cost at $2; choosing 100 pcs should apply a bulk price of $80 (implying $0.80/unit). However, the price displayed becomes $102 instead of reflecting the discount.
  • Core requirement: an app that handles both custom dimensions and quantity-based discounts, and dynamically updates the total price accurately.

Status: open request for recommendations/troubleshooting guidance; no solution or app identified yet.

Summarized with AI on December 16. AI used: gpt-5.

hey, I am making a sticker printing site, where cutomers can choose a set of sizes or input a custom size, and then they can choose from 50, 100, 200, 300, 1000 ad 2500 pcs with discounts or enter a custom number of quantity, easify solves this for a bit, problem is it does not multiply, for example I choose medium that makes unit cost $2, then 100pcs is $80 so it should be 80 cents, what appears on my price is $102, any help on what app I should install that also automatically updates the total price?

Hello @omel,

I can understand how that pricing issue would be frustrating for your sticker shop. It is very important that your customers see an accurate total price that reflects your quantity discounts correctly.

You can try Inkybay ‑ Product Personalizer, With Inkybay’s Product Options feature to set up your fixed sizes and your custom size inputs easily, and apply a discount based on your required correct discount rules. This will help you avoid the calculation errors you are seeing right now, and your customer can crearte there own sticker inside the design lab. This will give your customers a smooth shopping experience.

Setup is simple and requires no coding. Inkybay also comes with a free 21-day trial, so you can test it to see if it fits your needs.

Hey!

You can checkout our Fabric Upload and Scaling Tool. contact us for demo.

@omel - we just solved for this on Dollarlabs B2B app. We call it progressive case multiples.

How it works

  1. You set up the price at each quantity break
  2. What price should the item be if the customer buys, adds extra items (in loose)

I’ve attached a quick screenshot of the config screen on our B2B app and a quick loom video recording running through the setup.

Here’s how the offer would reflect / show on the frontend.

Best part is all of this is editable per variant with a CSV import, with support for different offers for different customer types as well. So you should be up and running with multiple products in no time.

Hey, this is a pretty common issue with print pricing.

The main problem is that some apps calculate tier prices as fixed totals instead of recalculating from the unit price when size or quantity changes. That’s why the math breaks when you switch sizes.

You might want to try P: Quantity Breaks & Discounts. It applies discounts at the unit price level, so when you choose a size (for example Medium = $2) and then select 100 pcs, the discount is applied per unit and the total updates correctly (100 × $0.80 = $80). It also supports custom quantities, not just preset tiers.

Happy to help you set it up incase you want to test it on a product.